package cn.xuchunh.exam;

/**
 * Created by XuChunH on 2016/9/11.
 */
public class NULL {

    public static void print(){
        System.out.println("ds");
    }

    public static void main(String[] args) {
        try {
            ((NULL)null).print();
        }catch (NullPointerException e) {
            System.out.println("NullPointerException");
        }
    }

}
